S.R.B. Lyrics
"Hydraulic Power Unit"

Solid rocket booster
Solid rocket booster development plan instrumentation
recorded has gone to record mode
In the main propulsion system liquid oxygen and liquid
hydrogen (,) have been closed

You're at t-minus one minute and counting

Coming up on the 30 second point in our countdown
T-minus 30 seconds and we've had a go for auto-sequence start

T-minus 21 seconds, and the solid rocket booster engine gimbal now underway

12, 11, 10, 9
Ignition sequence start
6, 5, 4, 3, 2, 1, 0
The SRB hydraulic power units have started!

Solid rocket booster

T-minus 21 seconds, and the solid rocket booster engine gimbal now underway
The SRB hydraulic power units have started!
12, 11, 10, 9
Ignition sequence start
6, 5, 4, 3, 2, 1, 0
All systems go (?X)

Thanks to razvan